/*
 * Copyright (c) 2016-2020 Arm Limited.
 *
 * SPDX-License-Identifier: MIT
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
#ifndef ARM_COMPUTE_NEBOX3x3KERNEL_H
#define ARM_COMPUTE_NEBOX3x3KERNEL_H

#include "src/core/NEON/INESimpleKernel.h"

namespace arm_compute
{
class ITensor;

/** NEON kernel to perform a Box 3x3 filter */
class NEBox3x3Kernel : public INESimpleKernel
{
public:
    const char *name() const override
    {
        return "NEBox3x3Kernel";
    }
    /** Default constructor */
    NEBox3x3Kernel() = default;
    /** Prevent instances of this class from being copied (As this class contains pointers) */
    NEBox3x3Kernel(const NEBox3x3Kernel &) = delete;
    /** Prevent instances of this class from being copied (As this class contains pointers) */
    NEBox3x3Kernel &operator=(const NEBox3x3Kernel &) = delete;
    /** Allow instances of this class to be moved */
    NEBox3x3Kernel(NEBox3x3Kernel &&) = default;
    /** Allow instances of this class to be moved */
    NEBox3x3Kernel &operator=(NEBox3x3Kernel &&) = default;
    /** Default destructor */
    ~NEBox3x3Kernel() = default;
    /** Set the source, destination and border mode of the kernel
     *
     * @param[in]  input            Source tensor. Data type supported: U8.
     * @param[out] output           Destination tensor. Data type supported: U8.
     * @param[in]  border_undefined True if the border mode is undefined. False if it's replicate or constant.
     */
    void configure(const ITensor *input, ITensor *output, bool border_undefined);
    // Inherited methods overridden:
    void run(const Window &window, const ThreadInfo &info) override;
    BorderSize border_size() const override;
};

#ifdef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
/** NEON kernel to perform a Box 3x3 filter for FP16 datatype
 */
class NEBox3x3FP16Kernel : public NEBox3x3Kernel
{
public:
    const char *name() const override
    {
        return "NEBox3x3FP16Kernel";
    }
    /** Default constructor */
    NEBox3x3FP16Kernel() = default;
    /** Prevent instances of this class from being copied (As this class contains pointers) */
    NEBox3x3FP16Kernel(const NEBox3x3FP16Kernel &) = delete;
    /** Prevent instances of this class from being copied (As this class contains pointers) */
    NEBox3x3FP16Kernel &operator=(const NEBox3x3FP16Kernel &) = delete;
    /** Allow instances of this class to be moved */
    NEBox3x3FP16Kernel(NEBox3x3FP16Kernel &&) = default;
    /** Allow instances of this class to be moved */
    NEBox3x3FP16Kernel &operator=(NEBox3x3FP16Kernel &&) = default;
    /** Default destructor */
    ~NEBox3x3FP16Kernel() = default;
    // Inherited methods overridden:
    void run(const Window &window, const ThreadInfo &info) override;
};
#else  /* __ARM_FEATURE_FP16_VECTOR_ARITHMETIC */
/** NEON kernel to perform a Box 3x3 filter for FP16 datatype */
using NEBox3x3FP16Kernel = NEBox3x3Kernel;
#endif /* __ARM_FEATURE_FP16_VECTOR_ARITHMETIC */
} // namespace arm_compute
#endif /*ARM_COMPUTE_NEBOX3x3KERNEL_H */